Dear All,
Which vonmises stresses are to be evaluated for the 2nd order tetra elements ? Elemental stress or Gridpoints streses
I see very different results of von-mises for Element and Grid point stresses
pic 1 : Elemental stresses ( 2D&3D) , vonMises

Pic 2 : Grid point stresses (Global ), vonMises

Could someone explain the difference and which is more close to failure vonMises criteria ?
Kind regards,
SId